SE8804140A - - Google Patents
Info
- Publication number
- SE8804140A SE8804140A SE8804140A SE8804140A SE8804140A SE 8804140 A SE8804140 A SE 8804140A SE 8804140 A SE8804140 A SE 8804140A SE 8804140 A SE8804140 A SE 8804140A SE 8804140 A SE8804140 A SE 8804140A
- Authority
- SE
- Sweden
- Prior art keywords
- substance
- flow
- juncture
- dosed
- branches
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
- G01F11/28—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Sampling And Sample Adjustment (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The dosing of a flowable substance is effected in a system of branched pipes, wherein an inlet branch (1) leads to a juncture (2) which connects to two or more extension branches (3,4). The substance to be dosed is allowed to flow past the juncture into one of the extensions (3), where the flow is stopped. The fraction of substance which has entered the extension branch is separated from the fraction remaining in the inlet branch by letting an auxiliary substance immiscible with the substance to be dosed flow in through one of said branches (3) and a second extension branch (4) in such manner that one of the fractions (15) is carried away by the flow of the auxiliary substance. The two fractions are separated by a boundary surface created by surface tension at the juncture of the pipe branches. The precision of dosage achieved by the fact that a boundary surface can be repeatedly produced at the same place. The invention is suited for wet chemical analyses in which the substance to be dosed is a fluid, generally a water solution, and the auxiliary substance may be a gas e.g. air, or another fluid immiscible with water. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI875078A FI78664C (en) | 1987-11-17 | 1987-11-17 | OVER ANALYZING FOR DOSERING AV AROTIME AEMNE. |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8804140A true SE8804140A (en) | 1988-11-16 |
SE8804140D0 SE8804140D0 (en) | 1988-11-16 |
SE8804140A0 SE8804140A0 (en) | 1989-05-18 |
Family
ID=8525429
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8804140A SE8804140A0 (en) | 1987-11-17 | 1988-11-16 | Method and apparatus for dosing a liquid substance |
Country Status (11)
Country | Link |
---|---|
JP (1) | JPH01199639A (en) |
AU (1) | AU609895B2 (en) |
BE (1) | BE1003785A4 (en) |
CH (1) | CH677405A5 (en) |
DE (1) | DE3836208A1 (en) |
FI (1) | FI78664C (en) |
FR (1) | FR2623182A1 (en) |
GB (1) | GB2212612B (en) |
IT (1) | IT1225724B (en) |
NL (1) | NL8802779A (en) |
SE (1) | SE8804140A0 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004039378A1 (en) * | 2004-08-13 | 2006-02-23 | Hte Ag The High Throughput Experimentation Company | Device for the controlled removal of fluid samples from pressure vessels |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE640699A (en) * | ||||
GB1094818A (en) * | 1965-06-11 | 1967-12-13 | Ass Octel | Liquid metering apparatus and method |
US3794194A (en) * | 1971-12-01 | 1974-02-26 | Arkansas Rock & Gravel Co | Self-unloading material delivery system |
DE2441844A1 (en) * | 1974-08-31 | 1976-03-11 | Dornier System Gmbh | Liquid sample taken with non-representative liquid eliminated - by temporary storage then return to process system(BE-27.2.76) |
JPS5722112Y2 (en) * | 1977-02-25 | 1982-05-13 | ||
US4352780A (en) * | 1979-07-13 | 1982-10-05 | Fiatron Systems, Inc. | Device for controlled injection of fluids |
US4597298A (en) * | 1982-06-04 | 1986-07-01 | Bifok Ab | Hydrodynamic sample introducing system |
DE3630078A1 (en) * | 1986-09-04 | 1988-03-17 | Kruse Hans Hinrich Dipl Chem | Appliance for the conversion of gas quantities |
-
1987
- 1987-11-17 FI FI875078A patent/FI78664C/en not_active IP Right Cessation
-
1988
- 1988-10-24 DE DE3836208A patent/DE3836208A1/en not_active Ceased
- 1988-11-07 CH CH4123/88A patent/CH677405A5/de not_active IP Right Cessation
- 1988-11-08 GB GB8826129A patent/GB2212612B/en not_active Expired - Fee Related
- 1988-11-10 FR FR8814681A patent/FR2623182A1/en not_active Withdrawn
- 1988-11-11 NL NL8802779A patent/NL8802779A/en not_active Application Discontinuation
- 1988-11-16 BE BE8801299A patent/BE1003785A4/en not_active IP Right Cessation
- 1988-11-16 IT IT8812584A patent/IT1225724B/en active
- 1988-11-16 SE SE8804140A patent/SE8804140A0/en unknown
- 1988-11-17 JP JP63288999A patent/JPH01199639A/en active Granted
- 1988-11-17 AU AU25187/88A patent/AU609895B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
CH677405A5 (en) | 1991-05-15 |
FI78664B (en) | 1989-05-31 |
GB8826129D0 (en) | 1988-12-14 |
FI78664C (en) | 1989-09-11 |
NL8802779A (en) | 1989-06-16 |
BE1003785A4 (en) | 1992-06-16 |
AU609895B2 (en) | 1991-05-09 |
JPH01199639A (en) | 1989-08-11 |
FR2623182A1 (en) | 1989-05-19 |
AU2518788A (en) | 1989-05-18 |
GB2212612A (en) | 1989-07-26 |
FI875078A0 (en) | 1987-11-17 |
IT1225724B (en) | 1990-11-22 |
IT8812584A0 (en) | 1988-11-16 |
SE8804140A0 (en) | 1989-05-18 |
GB2212612B (en) | 1991-10-30 |
DE3836208A1 (en) | 1989-05-24 |
JPH0369576B2 (en) | 1991-11-01 |
SE8804140D0 (en) | 1988-11-16 |
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